Camera Optical Lens

ABSTRACT

The present disclosure discloses a camera optical lens. The camera optical lens includes, in an order from an object side to an image side, an aperture, a first lens, a second lens, a third lens, a fourth lens, and a fifth lens. The camera optical lens further satisfies specific conditions.

FIELD OF THE PRESENT DISCLOSURE

The present disclosure relates to optical lens, in particular to acamera optical lens suitable for handheld devices such as smart phonesand digital cameras and imaging devices.

DESCRIPTION OF RELATED ART

With the emergence of smart phones in recent years, the demand forminiature camera lens is increasing day by day, but the photosensitivedevices of general camera lens are no other than Charge Coupled Device(CCD) or Complementary metal-Oxide Semiconductor Sensor (CMOS sensor),and as the progress of the semiconductor manufacturing technology makesthe pixel size of the photosensitive devices shrink, coupled with thecurrent development trend of electronic products being that theirfunctions should be better and their shape should be thin and small,miniature camera lens with good imaging quality therefor has become amainstream in the market. In order to obtain better imaging quality, thelens that is traditionally equipped in mobile phone cameras adopts athree-piece or four-piece lens structure. And, with the development oftechnology and the increase of the diverse demands of users, and underthis circumstances that the pixel area of photosensitive devices isshrinking steadily and the requirement of the system for the imagingquality is improving constantly, the five-piece, six-piece andseven-piece lens structure gradually appear in lens design. There is anurgent need for ultra-thin wide-angle camera lenses which have goodoptical characteristics and the chromatic aberration of which is fullycorrected.

BRIEF DESCRIPTION OF THE DRAWINGS

Many aspects of the exemplary embodiments can be better understood withreference to the following drawings. The components in the drawing arenot necessarily drawn to scale, the emphasis instead being placed uponclearly illustrating the principles of the present disclosure.

FIG. 1 is a schematic diagram of a camera optical lens in accordancewith a first embodiment of the present invention;

FIG. 2 shows the longitudinal aberration of the camera optical lensshown in FIG. 1;

FIG. 3 shows the lateral color of the camera optical lens shown in FIG.1;

FIG. 4 presents a schematic diagram of the field curvature anddistortion of the camera optical lens shown in FIG. 1;

FIG. 5 is a schematic diagram of a camera optical lens in accordancewith a second embodiment of the present invention;

FIG. 6 presents the longitudinal aberration of the camera optical lensshown in FIG. 5;

FIG. 7 presents the lateral color of the camera optical lens shown inFIG. 5;

FIG. 8 presents the field curvature and distortion of the camera opticallens shown in FIG. 5;

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

The present disclosure will hereinafter be described in detail withreference to several exemplary embodiments. To make the technicalproblems to be solved, technical solutions and beneficial effects of thepresent disclosure more apparent, the present disclosure is described infurther detail together with the figure and the embodiments. It shouldbe understood the specific embodiments described hereby is only toexplain the disclosure, not intended to limit the disclosure.

Embodiment 1

As referring to FIG. 1, the present invention provides a camera opticallens 10. FIG. 1 shows the camera optical lens 10 of embodiment 1 of thepresent invention, the camera optical lens 10 comprises 5 lenses.Specifically, from the object side to the image side, the camera opticallens 10 comprises in sequence:

an aperture St, a first lens L1, a second lens L2, a third lens L3, afourth lens L4, and a fifth lens L5. Optical element like optical filterGF can be arranged between the fifth lens L5 and the image surface Si.

In this embodiment, the first lens L1 has a positive refractive powerwith a convex object side surface relative to the proximal axis, theaperture St is arranged between the object and the first lens L1. Thesecond lens L2 has a negative refractive power with a concave image sidesurface relative to the proximal axis. The third lens L3 has a negativerefractive power with a concave object side surface relative to theproximal axis and a convex image side surface relative to the proximalaxis. The fourth lens L4 has a positive refractive power with a concaveobject side surface relative to the proximal axis and a convex imageside surface relative to the proximal axis, the fourth lens L4 candistribute the positive refractive power of the first lens L1, andthereby reduce the sensitivity of system. The fifth lens L5 has anegative refractive power with a concave object side surface relative tothe proximal axis.

Here, the focal length of the whole camera optical lens 10 is defined asf, the focal length of the first lens L1 is defined as f1, the focallength of the second lens L2 is defined as f2, the focal length of thethird lens L3 is defined as f3, the focal length of the fourth lens L4is defined as f4, the focal length of the fifth lens L5 is defined asf5, the refractive power of the second lens L2 is defined as n2, therefractive power of the third lens L3 is defined as n3, the thicknesson-axis of the second lens L2 is defined as d3, the thickness on-axis ofthe third lens L3 is defined as d5, the curvature radius of the objectside surface of the second lens L2 is defined as R3, the curvatureradius of the image side surface of the second lens L2 is defined as R4.The following condition should satisfied: 0.90<f1/f<0.95,−3.1<f2/f<−2.8, −17<f3/f<−15, 0.6<f4/f<0.7, −0.60<f5/f<−0.55;3.6<n2*n3<3.9, 40<1/(d3*d5)<45, 1.2<(R3+R4)/(R3−R4)<1.4.

When the focal length of the camera optical lens 10 of the presentinvention, the focal length of each lens, the refractive power of therelated lens, the thickness on-axis and the curvature radius of thecamera optical lens satisfy the above conditions, the camera opticallens 10 has the large of aperture, satisfies the design requirement oflow TTL, the large of imaging height and more suitable for portablecamera

In this embodiment, the focal length of the first lens L1 is defined asf1, the focal length of the second lens L2 is defined as f2, the focallength of the third lens L3 is defined as f3, the focal length of thefourth lens L4 is defined as f4, and the focal length of the fifth lensL5 is defined as f5. Here the following condition should satisfied:3.2<f1<3.4, −11<f2<−10, −60<f3<−55, 2.2<f4<2.4, −2.1<f5<−1.9. The unitof distance, radius and center thickness is mm. With such design, thetotal optical length TTL of the whole camera optical lens 10 can be madeas short as possible, thus the miniaturization characteristics can bemaintained.

Preferably, the total optical length TTL of the camera optical lens 10is less than or equal to 4.48 mm. This design helps the camera opticallens 10 facilitates miniaturization characteristics. The aperture Fnumber of the camera optical lens is less than or equal to 1.7, thisdesign helps the large aperture of the camera optical lens 10 toachieve, which can improve the imaging performance in a low-illuminationenvironment.

In the camera optical lens 10 of the present invention, each lens ismade of glass material or plastic material, if the lens is made of glassmaterial, which can increase the freedom of the refractive powerconfiguration of the optical system of the present invention, if thelens material is plastic, the production cost can be effectivelyreduced.

In this embodiment, the first lens L1 is made of plastic material, thesecond lens L2 is made of glass material, the third lens L3 is made ofglass material, the fourth lens L4 is made of plastic material, thefifth lens L5 is made of plastic material, This design effectivelyimproves the optical performance of the camera optical lens 10, andprovides the camera lens 10 with better reliability under differentconditions of temperature and humidity.

In this embodiment, the thickness on-axis of the second lens L2 isdefined as d3, the thickness on-axis of the third lens L3 is defined asd5. Preferably, the following condition shall be satisfied,0.88<d3/d5<0.92. This design helps the second lens L2 and the third lensL3 have an optimal thickness to realize configuration of the system.

In this embodiment, the refractive power of the first lens L1 is definedas n1, the refractive power of the second lens L2 is defined as n2, therefractive power of the third lens L3 is defined as n3, the refractivepower of the fourth lens L4 is defined as n4, the refractive power ofthe fifth lens L5 is defined as n5, the following condition shall besatisfied, 1.5<n1<1.6, 1.8<n2<1.9, 1.9<n3<2.1, 1.53<n4<1.55,1.52<n5<1.55. Such design enables the lenses made from different opticalmaterials to match each other better, and further enables the cameralens 10 to perform better imaging quality.

In this embodiment, the abbe number of the first lens L1 is defined asv1, the abbe number of the second lens L2 is defined as v2, the abbenumber of the third lens L3 is defined as v3, the abbe number of thefourth lens L4 is defined as v4, the abbe number of the fifth lens L5 isdefined as v5. Here the following condition should satisfied: 55<v1<57,23<v2<25, 19<v3<21, 55<v4<57, 55<v5<57. The satisfied condition isbeneficial to correction of aberration. This design can suppress opticalcolor difference when the optical lens 10 works.

Configurations of refractive index and abbe number of the lensesmentioned above can be combined and applied for designing the cameraoptical lens 10. Therefore, the second lens L2 and the third lens L3made from optical materials with high refractive index and low abbenumber can effectively reduce color difference of the system and greatlyimprove the imaging quality of the camera optical lens 10.

Besides, surfaces of the lens are configured to be aspherical forapproaching more controllable variables to correct abberations, reducethe amount of the lenses, and further to reduce the total length of thecamera lens.

Preferably, inflexion points and/or arrest points can also be arrangedon the object side surface and/or image side surface of the lens, sothat the demand for high quality imaging can be satisfied, thedescription below can be referred for specific implementable scheme.

The design information of the camera optical lens 10 in the firstembodiment of the present invention is shown in the tables 1 and 2.

TABLE 1 focal length (mm) f 3.545 f1 3.290 f2 −10.453 f3 −57.424 f42.246 f5 −2.055

Where:

In which, the meaning of the various symbols is as follows.

f: the focal length of the camera optical lens 10;

f1: the focal length of the first lens;

f2: the focal length of the second lens;

f3: the focal length of the third lens;

f4: the focal length of the fourth lens;

f5: the focal length of the fifth lens.

TABLE 2 Curvature Thickness/ Refractive Abbe radius (R) Distance (d)power number (mm) (mm) (nd) (νd) St St ∞ d0= −0.404 L1 R1 1.393 d1=0.591 nd1 1.5441 ν1 56.12 R2 5.281 d2= 0.088 L2 R3 56.048 d3= 0.145 nd21.8470 ν2 23.80 R4 7.687 d4= 0.440 L3 R5 −8.500 d5= 0.162 nd3 2.0240 ν320.41 R6 −10.017 d6= 0.271 L4 R7 −5.209 d7= 0.927 nd4 1.5441 ν4 56.12 R8−1.055 d8= 0.409 L5 R9 −3.417 d9= 0.368 nd5 1.5352 ν5 56.12 R10 1.691d10= 0.345 Glass R11 ∞ d11= 0.210 ndg 1.5168 νg 64.17 R12 ∞ d12= 0.527

In which, R1 and R2 represent respectively the object side surface andimage side surface of the first lens L1, R3 and R4 representrespectively the object side surface and image side surface of thesecond lens L2, R5 and R6 represent respectively the object side surfaceand image side surface of the third lens L3, R7 and R8 representrespectively the object side surface and image side surface of thefourth lens L4, R9 and R10 represent respectively the object sidesurface and image side surface of the fifth lens L5, R11 and R12represent respectively the object side surface and image side surface ofthe optical filter GF. Other, the meaning of the various symbols is asfollows.

d0: The distance on-axis from aperture St to the object side surface ofthe first lens L1;

d1: The thickness on-axis of the first lens L1;

d2: The distance on-axis from the image side surface of the first lensL1 to the object side surface of the second lens L2;

d3: The thickness on-axis of the second lens L2;

d4: The distance on-axis from the image side surface of the second lensL2 to the object side surface of the third lens L3;

d5: The thickness on-axis of the third lens L3;

d6: The distance on-axis from the image side surface of the third lensL3 to the object side surface of the fourth lens L4;

d7: The thickness on-axis of the fourth lens L4;

d8: The distance on-axis from the image side surface of the fourth lensL4 to the object side surface of the fifth lens L5;

d9: The thickness on-axis of the fifth lens L5;

d10: The distance on-axis from the image side surface of the fifth lensL5 to the object side surface of the optical filter GF;

d11: The thickness on-axis of the optical filter GF;

d12: The distance on-axis from the image side surface to the imagesurface of the optical filter GF;

nd1: The refractive power of the first lens L1;

nd2: The refractive power of the second lens L2;

nd3: The refractive power of the third lens L3;

nd4: The refractive power of the fourth lens L4;

nd5: The refractive power of the fifth lens L5;

ndg: The refractive power of the optical filter GF;

v1: The abbe number of the first lens L1;

v2: The abbe number of the second lens L2;

v3: The abbe number of the third lens L3;

v4: The abbe number of the fourth lens L4;

v5: The abbe number of the fifth lens L5;

vg: The abbe number of the optical filter GF.

Table 3 shows the aspherical surface data of the camera optical lens 10in the embodiment 1 of the present invention.

TABLE 3 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1 2.8359E−02 −9.3073E−03 7.0339E−02 −2.0042E−01 3.4992E−01 −3.8483E−012.5511E−01 −8.5458E−02 R2 −4.9670E+01  −5.3259E−05 −1.5592E−01  6.5302E−01 −1.3708E+00   1.6481E+00 −1.0831E+00   2.9039E−01 R39.9262E+01  4.4577E−03 1.1755E−01 −2.6995E−02 −6.1165E−02   7.6007E−02−1.1210E−02  −1.1773E−02 R4 5.1118E+01  6.9402E−03 6.6155E−01−3.1896E+00 9.8188E+00 −1.7040E+01 1.5564E+01 −5.8300E+00 R5 8.9693E+01−1.9974E−01 3.2743E−01 −1.7652E+00 5.5268E+00 −1.0149E+01 9.8174E+00−3.7779E+00 R6 6.0475E+01 −1.4955E−01 −1.6676E−02   1.5042E−01−3.8833E−01   4.4046E−01 −1.7824E−01   1.6040E−02 R7 6.0614E+00−7.6357E−02 7.1409E−02 −7.4963E−02 6.0451E−02 −2.3894E−02 4.3796E−03−2.8409E−04 R8 −8.4423E−01   1.4336E−01 −1.3785E−01   1.0556E−01−4.3144E−02   1.0729E−02 −1.5337E−03   8.6578E−05 R9 −1.0402E+01 −7.5184E−02 2.7208E−02 −3.2657E−03 2.4385E−04 −5.5453E−05 9.4071E−06−5.2616E−07 R10 −1.0839E+01  −5.9307E−02 2.3382E−02 −7.9781E−031.7610E−03 −2.4027E−04 1.8795E−05 −6.3318E−07

Table 4 and table 5 show the inflexion points and the arrest pointdesign data of the camera optical lens 10 lens in embodiment 1 of thepresent invention. In which, R1 and R2 represent respectively the objectside surface and image side surface of the first lens L1, R3 and R4represent respectively the object side surface and image side surface ofthe second lens L2, R5 and R6 represent respectively the object sidesurface and image side surface of the third lens L3, R7 and R8 representrespectively the object side surface and image side surface of thefourth lens L4, R9 and R10 represent respectively the object sidesurface and image side surface of the fifth lens L5. The data in thecolumn named “inflexion point position” are the vertical distances fromthe inflexion points arranged on each lens surface to the optic axis ofthe camera optical lens 10. The data in the column named “arrest pointposition” are the vertical distances from the arrest points arranged oneach lens surface to the optic axis of the camera optical lens 10.

TABLE 4 Inflexion point Inflexion point Inflexion point number position1 position 2 R1 1 0.995 R2 1 0.745 R3 0 R4 1 0.865 R5 0 R6 1 0.975 R7 11.115 R8 2 1.175 1.605 R9 1 1.335 R10 2 0.595 2.365

TABLE 5 Arrest point Arrest point number position 1 R1 0 R2 1 0.965 R3 0R4 0 R5 0 R6 0 R7 0 R8 0 R9 1 2.155 R10 1 1.385

FIG. 2 and FIG. 3 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 486 nm, 588 nm and656 nm passes the camera optical lens 10 in the first embodiment. FIG. 4shows the field curvature and distortion schematic diagrams after lightwith a wavelength of 588 nm passes the camera optical lens 10 in thefirst embodiment.

Table 6 shows the various values of the embodiments and the valuescorresponding with the parameters which are already specified in theconditions.

As shown in Table 6, the first embodiment satisfies the variousconditions.

TABLE 6 Embodiment 1 0.90 < f1/f < 0.95 0.927997161 −3.1 < f2/f < −2.8−2.948450856 −17 < f3/f < −15 −16.19680201 0.6 < f4/f < 0.7 0.633623935−0.60 < f5/f < −0.55 −0.579523124 3.6 < n2*n3 < 3.9 3.738353858 40 <1/(d3*d5) < 45 42.57130694 1.2 < (R3 + R4)/(R3 − R4) < 1.4 1.317901124

In this embodiment, the pupil entering diameter of the camera opticallens is 2.09 mm, the full vision field image height is 3.261 mm, thevision field angle in the diagonal direction is 83.68°.

Embodiment 2

Embodiment 2 is basically the same as embodiment 1, the meaning of itssymbols is the same as that of embodiment 1, in the following, only thedifferences are described.

Table 5, table 7 and table 8 show the design data of the camera opticallens 20 in embodiment 2 of the present invention.

TABLE 7 focal length (mm) f 3.543 f1 3.291 f2 −10.460 f3 −57.919 f42.247 f5 −2.057

Where:

In which, the meaning of the various symbols is as follows.

f: the focal length of the camera optical lens 20;

f1: the focal length of the first lens;

f2: the focal length of the second lens;

f3: the focal length of the third lens;

f4: the focal length of the fourth lens;

f5: the focal length of the fifth lens.

TABLE 8 Curvature Thickness/ Refractive Abbe radius (R) Distance (d)power number (mm) (mm) (nd) (νd) St St ∞ d0= −0.404 L1 R1 1.393 d1=0.591 nd1 1.5441 ν1 56.12 R2 5.278 d2= 0.088 L2 R3 56.216 d3= 0.145 nd21.8470 ν2 23.80 R4 7.694 d4= 0.439 L3 R5 −8.502 d5= 0.162 nd3 2.0240 ν320.41 R6 −10.006 d6= 0.270 L4 R7 −5.209 d7= 0.927 nd4 1.5441 ν4 56.12 R8−1.055 d8= 0.409 L5 R9 −3.414 d9= 0.368 nd5 1.5352 ν5 56.12 R10 1.694d10= 0.344 Glass R11 ∞ d11= 0.210 ndg 1.5168 νg 64.17 R12 ∞ d12= 0.526

In which, R1 and R2 represent respectively the object side surface andimage side surface of the first lens L1, R3 and R4 representrespectively the object side surface and image side surface of thesecond lens L2, R5 and R6 represent respectively the object side surfaceand image side surface of the third lens L3, R7 and R8 representrespectively the object side surface and image side surface of thefourth lens L4, R9 and R10 represent respectively the object sidesurface and image side surface of the fifth lens L5, R11 and R12represent respectively the object side surface and image side surface ofthe optical filter GF. Other, the meaning of the various symbols is asfollows.

d0: The distance on-axis from aperture St to the object side surface ofthe first lens L1;

d1: The thickness on-axis of the first lens L1;

d2: The distance on-axis from the image side surface of the first lensL1 to the object side surface of the second lens L2;

d3: The thickness on-axis of the second lens L2;

d4: The distance on-axis from the image side surface of the second lensL2 to the object side surface of the third lens L3;

d5: The thickness on-axis of the third lens L3;

d6: The distance on-axis from the image side surface of the third lensL3 to the object side surface of the fourth lens L4;

d7: The thickness on-axis of the fourth lens L4;

d8: The distance on-axis from the image side surface of the fourth lensL4 to the object side surface of the fifth lens L5;

d9: The thickness on-axis of the fifth lens L5;

d10: The distance on-axis from the image side surface of the fifth lensL5 to the object side surface of the optical filter GF;

d11: The thickness on-axis of the optical filter GF;

d12: The distance on-axis from the image side surface to the imagesurface of the optical filter GF;

nd1: The refractive power of the first lens L1;

nd2: The refractive power of the second lens L2;

nd3: The refractive power of the third lens L3;

nd4: The refractive power of the fourth lens L4;

nd5: The refractive power of the fifth lens L5;

ndg: The refractive power of the optical filter GF;

v1: The abbe number of the first lens L1;

v2: The abbe number of the second lens L2;

v3: The abbe number of the third lens L3;

v4: The abbe number of the fourth lens L4;

v5: The abbe number of the fifth lens L5;

vg: The abbe number of the optical filter GF.

Table 9 shows the aspherical surface data of each lens of the cameraoptical lens 20 in embodiment 2 of the present invention.

TABLE 9 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1 2.8418E−02 −9.3075E−03 7.0391E−02 −2.0044E−01 3.4988E−01 −3.8485E−012.5512E−01 −8.5426E−02 R2 −4.9446E+01  −5.9279E−05 −1.5598E−01  6.5300E−01 −1.3708E+00   1.6480E+00 −1.0832E+00   2.9039E−01 R39.9288E+01  4.5512E−03 1.1752E−01 −2.7005E−02 −6.1132E−02   7.6061E−02−1.1166E−02  −1.1757E−02 R4 5.1117E+01  6.9188E−03 6.6168E−01−3.1897E+00 9.8187E+00 −1.7039E+01 1.5564E+01 −5.8299E+00 R5 8.9709E+01−1.9973E−01 3.2728E−01 −1.7652E+00 5.5267E+00 −1.0149E+01 9.8172E+00−3.7780E+00 R6 6.0515E+01 −1.4956E−01 −1.6739E−02   1.5041E−01−3.8833E−01   4.4047E−01 −1.7819E−01   1.6049E−02 R7 6.0609E+00−7.6356E−02 7.1409E−02 −7.4962E−02 6.0451E−02 −2.3894E−02 4.3797E−03−2.8406E−04 R8 −8.4424E−01   1.4337E−01 −1.3785E−01   1.0556E−01−4.3144E−02   1.0729E−02 −1.5337E−03   8.6580E−05 R9 −1.0419E+01 −7.5177E−02 2.7208E−02 −3.2658E−03 2.4382E−04 −5.5456E−05 9.4071E−06−5.2606E−07 R10 −1.0917E+01  −5.9370E−02 2.3386E−02 −7.9779E−031.7609E−03 −2.4028E−04 1.8795E−05 −6.3320E−07

Table 10 and table 11 show the inflexion points and the arrest pointdesign data of the camera optical lens 20 lens in embodiment 2 of thepresent invention. In which, R1 and R2 represent respectively the objectside surface and image side surface of the first lens L1, R3 and R4represent respectively the object side surface and image side surface ofthe second lens L2, R5 and R6 represent respectively the object sidesurface and image side surface of the third lens L3, R7 and R8 representrespectively the object side surface and image side surface of thefourth lens L4, R9 and R10 represent respectively the object sidesurface and image side surface of the fifth lens L5. The data in thecolumn named “inflexion point position” are the vertical distances fromthe inflexion points arranged on each lens surface to the optic axis ofthe camera optical lens 20. The data in the column named “arrest pointposition” are the vertical distances from the arrest points arranged oneach lens surface to the optic axis of the camera optical lens 20.

TABLE 10 Inflexion point Inflexion point Inflexion point Inflexion pointnumber position 1 position 2 position 3 R1 1 0.995 R2 1 0.745 R3 0 R4 10.865 R5 0 R6 1 0.975 R7 1 1.115 R8 2 1.175 1.605 R9 2 1.335 2.535 R10 30.595 2.375 2.775

TABLE 11 Arrest point Arrest point number position 1 R1 0 R2 1 0.965 R30 R4 0 R5 0 R6 0 R7 0 R8 0 R9 1 2.155 R10 1 1.385

FIG. 6 and FIG. 7 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 486 nm, 588 nm and656 nm passes the camera optical lens 20 in the second embodiment. FIG.8 shows the field curvature and distortion schematic diagrams afterlight with a wavelength of 588 nm passes the camera optical lens 20 inthe second embodiment.

As shown in Table 12, the second embodiment satisfies the variousconditions.

TABLE 12 Embodiment 2 0.90 < f1/f < 0.95 0.928864656 −3.1 < f2/f < −2.8−2.952533873 −17 < f3/f < −15 −16.34883365 0.6 < f4/f < 0.7 0.634238701−0.60 < f5/f < −0.55 −0.580681739 3.6 < n2*n3 < 3.9 3.738353858 40 <1/(d3*d5) < 45 42.57130694 1.2 < (R3 + R4)/(R3 − R4) < 1.4 1.317149319

In this embodiment, the pupil entering diameter of the camera opticallens is 2.08 mm, the full vision field image height is 3.261 mm, thevision field angle in the diagonal direction is 83.85°.

It is to be understood, however, that even though numerouscharacteristics and advantages of the present exemplary embodiments havebeen set forth in the foregoing description, together with details ofthe structures and functions of the embodiments, the disclosure isillustrative only, and changes may be made in detail, especially inmatters of shape, size, and arrangement of parts within the principlesof the invention to the full extent indicated by the broad generalmeaning of the terms where the appended claims are expressed.

What is claimed is:
 1. A camera optical lens comprising, from an objectside to an image side in sequence: a first lens having a positiverefractive power, a second lens having a negative refractive power, athird lens having a negative refractive power, a fourth lens having apositive refractive power, a fifth lens having a negative refractivepower; wherein the camera optical lens further satisfies the followingconditions:0.90<f1/f<0.95;−3.1<f2/f<−2.8;−17<f3/f<−15;0.6<f4/f<0.7;−0.60<f5/f<−0.55; where f: the focal length of the camera optical lens;f1: the focal length of the first lens; f2: the focal length of thesecond lens; f3: the focal length of the third lens; f4: the focallength of the fourth lens; f5: the focal length of the fifth lens. 2.The camera optical lens as described in claim 1 further satisfying thefollowing condition:3.6<n2*n3<3.9; where n2: the refractive power of the second lens; n3:the refractive power of the third lens.
 3. The camera optical lens asdescribed in claim 1 further satisfying the following condition:40<1/(d3*d5)<45; where d3: the thickness on-axis of the second lens; d5:the thickness on-axis of the third lens.
 4. The camera optical lens asdescribed in claim 1 further satisfying the following condition:1.2<(R3+R4)/(R3−R4)<1.4; where R3: the curvature radius of object sidesurface of the second lens; R4: the curvature radius of image sidesurface of the second lens.
 5. The camera optical lens as described inclaim 1 further satisfying the following conditions:3.2<f1<3.4;−11<f2<−10;−60<f3<−55;2.2<f4<2.4;−2.1<f5<−1.9; where f1: the focal length of the first lens; f2: thefocal length of the second lens; f3: the focal length of the third lens;f4: the focal length of the fourth lens; f5: the focal length of thefifth lens.
 6. The camera optical lens as described in claim 1, furthersatisfying the following conditions:1.5<n1<1.6;1.8<n2<1.9;1.9<n3<2.1;1.53<n4<1.55;1.52<n5<1.55; where n1: the refractive power of the first lens; n2: therefractive power of the second lens; n3: the refractive power of thethird lens; n4: the refractive power of the fourth lens; n5: therefractive power of the fifth lens.
 7. The camera optical lens asdescribed in claim 1 further satisfying the following conditions:55<v1<57;23<v2<25;19<v3<21;55<v4<57;55<v5<57; where v1: The abbe number of the first lens; v2: The abbenumber of the second lens; v3: The abbe number of the third lens; v4:The abbe number of the fourth lens; v5: The abbe number of the fifthlens.
 8. The camera optical lens as described in claim 1, wherein thetotal optical length of the camera optical lens is less than or equal to4.48 mm.
 9. The camera optical lens as described in claim 1, wherein theaperture F number of the camera optical lens is less than or equal to1.7.
 10. The camera optical lens as described in claim 1 furthersatisfying the following condition:0.88<d3/d5<0.92; where d3: the thickness on-axis of the second lens; d5:the thickness on-axis of the third lens.